Washington (AFP) – The projected Democratic takeover of the US Senate is a game-changer for President-elect Joe Biden, who will be able to push through his key goals and nominations without systematic Republican obstruction. Raphael Warnock, a pastor, and young political star Jon Ossoff held leads in dual-seat Senate runoffs in Georgia over Republican incumbents closely allied with defeated President Donald Trump. The victories would mean that Democrats and independents aligned with them will have 50 seats — an evenly divided Senate that gives Democrats control as Vice President-elect Kamala …